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(5)发展高精度、高效率的数值算法。相比较网格类方法,无网格粒子类方法在裂纹扩展问题的
求解上具备优势,但需要消耗更多的计算资源。发挥不同方法的优势,进一步发展各种方法的混合模
型,可以大幅度提高计算效率和计算精度。此外,将传统数值计算模型与机器学习 [79] 等方法相结合也
是一种有效途径。
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